Fixing structure of transformer lead

Abstract

The invention discloses a fixing structure of a transformer lead. The fixing structure comprises a standing wood, a blocking wood, an insulating cushion block and a fastener, the two insulation cushion blocks are arranged at intervals in the vertical direction and clamped between the standing wood and the blocking wood, the standing wood and the insulation cushion blocks are positioned through a positioning structure, and the opposite sides of the two insulation cushion blocks are provided with arc-shaped faces. The standing wood, the blocking wood and the two insulating cushion blocks are connected and fixed through fasteners, so that the lead is clamped and fixed between the standing wood and the blocking wood. The arc-shaped surfaces on the opposite sides of the two insulating cushion blocks are utilized to adapt to the requirements of leads in different directions, and meanwhile, the arc-shaped surfaces are in surface contact with the leads, so that the abrasion risk of lead insulation is reduced, and partial discharge or short-circuit hidden dangers are reduced.

Description

Technical Field

[0001] This invention belongs to the field of transformer manufacturing technology, and specifically relates to a fixing structure for transformer leads. Background Technology

[0002] In the field of transformer manufacturing and assembly, the reliable fixing of internal leads is one of the key links to ensure the long-term stable operation of the product.

[0003] Traditional lead wire fixing methods often involve placing square insulating blocks between the upright timber and the retaining timber to create a clamping gap. Due to the limitation of the square insulating blocks, this fixing method requires the lead wire to be arranged in a predetermined direction. This fixed direction prevents flexible adjustments based on the installation positions of other components inside the transformer, lead wire length, or other optimization needs. This severely restricts the freedom of wiring, increasing the difficulty of wiring design and leading to excessively long and redundant lead wires or excessively small bending radii. After prolonged operation, the lead wires are prone to deformation and insulation damage.

[0004] Furthermore, the aforementioned method of fixing with square insulating pads, even with insulating materials, may still cause wear and tear on the lead wire insulation under long-term vibration, potentially leading to partial discharge or short circuits. Especially in applications where multiple leads are connected in parallel or require flexible lead-out directions, traditional structures are insufficient to meet usage requirements.

[0005] Therefore, there is an urgent need in the field for a new type of lead fixing structure that can overcome the above-mentioned defects, so as to achieve flexible and variable lead direction, no damage to the lead during installation, and wider applicability. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a fixing structure for transformer leads, which addresses the shortcomings of the prior art. By utilizing the arc-shaped surfaces on opposite sides of the two insulating pads, it can adapt to the needs of different lead directions. At the same time, by utilizing the surface contact between the arc-shaped surfaces and the lead, the risk of wear on the lead insulation is reduced, and the hidden dangers of partial discharge or short circuit are reduced. This invention solves the technical problems in the prior art where the lead direction is difficult to change and the lead is easily worn during installation and operation.

[0007] The present invention adopts the following technical solution: a fixing structure for transformer leads, comprising uprights, retaining blocks, insulating pads, and fasteners; Two insulating pads are arranged vertically at intervals, and the two insulating pads are sandwiched between the upright and the stop. The upright and the insulating pads are positioned by a positioning structure. The opposite sides of the two insulating pads are provided with arc-shaped surfaces. The upright, the stop and the two insulating pads are connected and fixed by fasteners, so that the lead wire is clamped and fixed between the upright and the stop.

[0008] Preferably, the insulating pad is a cylindrical structure with its axis extending in the horizontal direction.

[0009] Preferably, the positioning structure includes a first positioning groove adapted to the insulating pad, disposed on the side of the upright wood facing the insulating pad.

[0010] Preferably, the first positioning groove is provided with a first positioning hole extending inward in the horizontal direction, and the end of the insulating pad facing the first positioning groove is provided with a first positioning rod that corresponds to and matches the first positioning hole.

[0011] Preferably, two first positioning holes are arranged symmetrically along the vertical direction.

[0012] Preferably, the second positioning groove of the stop block is adapted to the insulating pad on the side facing the insulating pad.

[0013] Preferably, the second positioning groove is provided with a second positioning hole extending inward in the horizontal direction, and the end of the insulating pad facing the second positioning groove is provided with a second positioning rod that corresponds to and matches the second positioning hole.

[0014] Preferably, two second positioning holes are arranged symmetrically along the vertical direction.

[0015] Preferably, the fastener includes a fastening screw and a fastening nut. The upright, insulating block and the stop are respectively provided with mounting through holes adapted to the fastening screw. The fastening screw passes through the upright, insulating block and the stop in sequence, and the fastening nut is screwed on both ends of the fastening screw.

[0016] Preferably, it also includes an insulation layer for wrapping around the outside of the lead wire and being clamped together with the lead wire between the upright and the retaining timber.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: By arranging two insulating pads vertically at intervals and setting arc-shaped surfaces on opposite sides of the two insulating pads, the arc-shaped surfaces can be used to adapt to the different directions of the lead wires. This allows the lead wires to be led outwards in any direction from the gap between the uprights and the retainers, enabling the lead wires to flexibly adjust their wiring direction according to the installation position of the internal components of the transformer. This greatly improves the degree of freedom in wiring, reduces the difficulty of wiring, avoids the problems of long-term operation deformation and insulation damage caused by excessively long and redundant lead wires or excessively small bending radii, and improves the adaptability of the fixed structure.

[0018] The arc-shaped surface of the insulating pad makes a surface contact with the lead wire and has a higher degree of fit. Combined with the fastening effect of the uprights, blocks, and fasteners, it can not only reliably fix the lead wire, but also reduce the risk of lead wire insulation wear under long-term vibration conditions, and reduce the risk of partial discharge or short circuit. It is especially suitable for working conditions where multiple leads are connected in parallel or where flexible lead-out directions are required, making it more versatile and improving the reliability, safety, and versatility of transformer lead fixing.

[0019] Furthermore, the insulating pad is designed as a cylinder, which facilitates processing and manufacturing. At the same time, the cylindrical curved surface is more complete and better suited to the adjustment of the lead wire at different angles, improving the flexibility of wiring.

[0020] Furthermore, by setting the first positioning groove, the pre-positioning of the upright and the insulating pad can be quickly achieved, avoiding the offset or misalignment of the insulating pad during installation, thus improving the overall installation efficiency. At the same time, the first positioning groove limits the insulating pad, which can enhance the connection stability between the insulating pad and the upright. Under long-term vibration or fastening force, it prevents the insulating pad from shifting relative to the upright, ensuring the clamping stability of the lead wire, thereby reducing insulation wear or loosening problems caused by pad displacement.

[0021] Furthermore, by utilizing the first positioning hole and the first positioning rod in conjunction, a precise and reliable positioning structure can be formed, improving the positioning accuracy and connection strength of the upright timber and the insulating pad. Simultaneously, during installation, the first positioning hole and the first positioning rod can be used to pre-install the upright timber and the insulating pad, reducing installation difficulty.

[0022] Furthermore, by utilizing two vertically symmetrical first positioning holes, two corresponding first positioning rods are also set at the corresponding ends of the insulating pads. On the one hand, this improves the force balance of the positioning structure; on the other hand, the symmetrically arranged positioning holes and positioning rods can further restrict the rotation or displacement of the insulating pads, ensuring that the relative arc surfaces of the two insulating pads always maintain the correct relative position, guaranteeing the clamping effect on the lead wire, and avoiding uneven force on the lead wire due to problems such as the deflection of the insulating pads.

[0023] Furthermore, by utilizing the second positioning groove, the pre-positioning of the block and the insulating pad can be quickly achieved, and a bidirectional positioning cooperation can be formed with the first positioning groove on the upright. The insulating pad is simultaneously limited from both sides of the upright and the block, improving the installation positioning accuracy and stability of the insulating pad.

[0024] Furthermore, by utilizing the second positioning hole and the second positioning rod, a precise insertion and positioning is achieved between the stop and the insulating pad. This works in conjunction with the first positioning rod and the first positioning hole on the upright side to achieve bidirectional insertion and positioning of the insulating pad between the upright and the stop, improving the installation firmness and positional stability of the insulating pad. This effectively limits the horizontal, vertical, and circumferential displacement of the insulating pad, preventing it from shifting or deflecting under long-term strong vibration conditions. This ensures stable clamping of the lead wire, reduces the risk of insulation wear and lead wire loosening, and improves the overall operational reliability of the structure.

[0025] Furthermore, two second positioning holes are symmetrically arranged vertically, and two positioning rods are also set at the corresponding ends of the insulating pad to improve the force balance and at the same time limit the deflection of the insulating pad.

[0026] Furthermore, the use of fastening screws and nuts facilitates the assembly of uprights, insulating blocks, and retaining blocks.

[0027] Furthermore, by using insulated lead wires, multiple layers of insulation protection can be formed, effectively preventing lead wire insulation damage and loosening.

[0028] In summary, the fixed structure of the present invention enables arbitrary adjustment of the lead wire direction, significantly reduces wear on the lead wire insulation during installation and operation, and improves the flexibility and versatility of use.

[0029] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the following description of the relative embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a front view of the fixed structure of the present invention; Figure 2 This is a side view of the fixed structure of the present invention; Figure 3 This is a schematic diagram of the mounting lead wire of the fixed structure of the present invention; Figure 4 This is a diagram illustrating the effect of using the mounting wires in the fixed structure of the present invention. Figure 5 This is a schematic diagram of the standing timber of the present invention. Figure 6 This is a schematic diagram of the structure of the insulating pad of the present invention.

[0032] The components are: 1. upright timber; 2. insulating pad; 3. stop timber; 4. fastener; 5. lead wire; 6. with insulation; 7. first positioning groove; 8. first positioning rod; 9. first positioning hole; 10. second positioning rod; 11. fastening screw; 12. fastening nut; 13. mounting through hole. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "one side," "one end," and "one side," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0037] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0038] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0039] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0040] This invention provides a fixed structure for transformer leads, which enables arbitrary adjustment of the lead direction of lead 5, significantly reduces wear on the insulation of lead 5 during installation and operation, and improves the flexibility and versatility of use.

[0041] In this embodiment, the horizontal direction is the interval between the upright 1 and the blocking 3.

[0042] Please see Figures 1 to 6 As shown, the present invention provides a fixing structure for transformer leads, including a vertical post 1, a retaining post 3, an insulating pad 2, and a fastener 4.

[0043] Among them, such as Figure 1 As shown, the uprights 1 and the retaining blocks 3 are arranged horizontally at intervals. Two insulating pads 2 are arranged vertically at intervals between the uprights 1 and the retaining blocks 3. The two insulating pads 2 are sandwiched between the uprights 1 and the retaining blocks 3. The uprights 1 and the insulating pads 2 are positioned by a positioning structure. The opposite sides of the two insulating pads 2 are provided with arc-shaped surfaces. The uprights 1, the retaining blocks 3 and the two insulating pads 2 are connected and fixed by fasteners 4, so that the lead wire 5 is clamped and fixed between the uprights 1 and the retaining blocks 3.

[0044] With the above arrangement, two insulating pads 2 are arranged vertically at intervals, and arc-shaped surfaces are provided on the opposite sides of the two insulating pads 2. The arc-shaped surfaces can be used to adapt to the different directions of the lead wire 5, allowing the lead wire 5 to be led outward in any direction from the gap between the upright 1 and the stop 3. This allows the lead wire 5 to flexibly adjust its wiring direction according to the installation position of the internal components of the transformer, greatly improving the degree of freedom in wiring, reducing the difficulty of wiring, avoiding the problems of long-term operation deformation and insulation damage caused by excessively long redundant lead wires or excessively small bending radii of lead wire 5, and improving the adaptability of the fixed structure.

[0045] The arc-shaped surface of the insulating pad 2 makes surface contact with the lead wire 5 and has a higher degree of fit. Combined with the fastening effect of the upright 1, the stop 3 and the fastener 4, it can not only reliably fix the lead wire 5, but also reduce the risk of wear on the insulation of the lead wire 5 under long-term vibration conditions, and reduce the hidden dangers of partial discharge or short circuit. It is especially suitable for working conditions where multiple leads 5 are connected in parallel or where flexible lead-out directions are required. It has a wider range of applications and improves the reliability, safety and versatility of fixing the transformer lead wire 5.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0047] Please see Figures 1 to 6 As shown, in the transformer lead fixing structure of the present invention, the insulating pad 2 is a cylindrical structure with its axis extending horizontally. Designing the insulating pad 2 as a cylinder facilitates manufacturing, and the cylindrical arc surface is more complete, better adapting to the adjustment of the lead 5 at different angles, thus improving the flexibility of wiring.

[0048] Of course, in other embodiments, the cross-section of the insulating pad 2 can also be a rectangular structure at the top and a semi-circular structure at the bottom, with the lower semi-circle forming an arc-shaped surface.

[0049] Preferably, in this embodiment, such as Figure 5 As shown, the positioning structure includes a first positioning groove 7 disposed on the side of the upright 1 facing the insulating pad 2. The position of the first positioning groove 7 corresponds to the installation position of the insulating pad 2, and the size of the first positioning groove 7 is adapted to the outer diameter of the insulating pad 2.

[0050] Specifically, the first positioning groove 7 is a circular countersunk hole structure adapted to the cross-section of the insulating pad 2. The end of the insulating pad 2 facing the first positioning groove 7 is inserted into the first positioning groove 7 to complete the positioning. By setting the first positioning groove 7, the pre-positioning of the upright 1 and the insulating pad 2 can be quickly achieved, avoiding the offset or misalignment of the insulating pad 2 during the installation process, thus improving the installation efficiency of the overall structure. At the same time, the first positioning groove 7 limits the insulating pad 2, which can enhance the connection stability between the insulating pad 2 and the upright 1. Under long-term vibration or fastening force, it prevents the insulating pad 2 from shifting relative to the upright 1, ensuring the clamping stability of the lead wire 5, thereby reducing the insulation wear or loosening problems of the lead wire 5 caused by the displacement of the pad.

[0051] Preferably, in this embodiment, such as Figure 5 , 6 As shown, a first positioning hole 9 extending inward in the horizontal direction is provided in the first positioning groove 7, and a first positioning rod 8 corresponding to and adapted to the first positioning hole 9 is provided at the end of the insulating pad 2 facing the first positioning groove 7. Specifically, the first positioning hole 9 is a countersunk hole, and the length of the first positioning rod 8 is adapted to the depth of the first positioning hole 9. During installation, the first positioning rod 8 is first inserted into the first positioning hole 9 until the end of the insulating pad 2 sinks into the first positioning groove 7 to complete the positioning installation.

[0052] By utilizing the first positioning hole 9 and the first positioning rod 8, a precise and reliable positioning structure can be formed, improving the positioning accuracy and connection strength of the upright log 1 and the insulating pad 2. Simultaneously, during installation, the first positioning hole 9 and the first positioning rod 8 can be used to pre-install the upright log 1 and the insulating pad 2, reducing installation difficulty.

[0053] Preferably, in this embodiment, two first positioning holes 9 are arranged symmetrically in the vertical direction. Specifically, two first positioning holes 9 are arranged symmetrically in the vertical direction with the central axis of the first positioning groove 7 as the axis of symmetry. Similarly, two corresponding first positioning rods 8 are provided at the corresponding ends of the insulating pad 2. By using two vertically symmetrical first positioning holes 9 and first positioning rods 8 to cooperate, the force balance of the positioning structure is improved on the one hand, and the symmetrically arranged positioning holes and positioning rods can further restrict the rotation or displacement of the insulating pad 2, ensuring that the relative arc surfaces of the two insulating pads 2 always maintain the correct relative position, ensuring the clamping effect on the lead wire 5, and avoiding uneven force on the lead wire 5 due to problems such as the deflection of the insulating pad 2.

[0054] Of course, in other embodiments, only one first positioning hole 9 may be provided, or multiple first positioning holes 9 may be arranged in a circumferential array along the axis of the first positioning groove 7. The specific number is not limited, as long as it meets the actual usage requirements. Of course, in other embodiments, the first positioning hole 9 may not be provided when meeting the actual usage requirements.

[0055] In other embodiments, while meeting practical usage and strength requirements, the positioning structure can also be a protrusion located at the position of the upright 1 corresponding to the insulating pad 2. In this case, a socket is provided at the corresponding end of the insulating pad 2, and the positioning of the two is achieved by the cooperation of the socket and the protrusion. At the same time, the protrusion can be designed as a gear tooth shape, and the socket is an adapted internal tooth hole. The cooperation of the two can prevent the insulating pad 2 from deflecting from the upright 1 and keep the insulating pad 2 stable during use.

[0056] Preferably, in this embodiment, a second positioning groove adapted to the insulating pad 2 is also provided on the side of the stop 3 facing the insulating pad 2. The structure of the second positioning groove is the same as that of the first positioning groove 7, and will not be described again here.

[0057] By utilizing the second positioning groove, the pre-positioning of the block 3 and the insulating pad 2 can be quickly achieved, and a bidirectional positioning cooperation can be formed with the first positioning groove 7 on the upright 1. The insulating pad 2 is simultaneously limited from both sides of the upright 1 and the block 3, thereby improving the installation positioning accuracy and stability of the insulating pad 2.

[0058] Similarly, in this embodiment, a second positioning hole extending inward in the horizontal direction is provided in the second positioning groove, and a second positioning rod 10 corresponding to and adapted to the second positioning hole is provided at the end of the insulating pad 2 facing the second positioning groove. The arrangement of the second positioning hole and the second positioning rod 10 is the same as the arrangement of the first positioning hole 9 and the first positioning rod 8, and will not be described again here.

[0059] By utilizing the second positioning hole and the second positioning rod 10, a precise insertion and positioning is formed between the stop 3 and the insulating pad 2. This works in conjunction with the structure of the first positioning rod 8 and the first positioning hole 9 on the side of the upright 1 to achieve bidirectional insertion and positioning of the insulating pad 2 between the upright 1 and the stop 3. This improves the installation firmness and positional stability of the insulating pad 2, effectively restricts the horizontal, vertical and circumferential displacement of the insulating pad 2, and prevents the insulating pad 2 from shifting or deflecting under long-term strong vibration conditions. This ensures stable clamping of the lead wire 5, reduces the risk of insulation wear and loosening of the lead wire 5, and improves the overall operational reliability of the structure.

[0060] Preferably, in this embodiment, two second positioning holes are symmetrically arranged vertically; similarly, as... Figure 6 As shown, two second positioning rods 10 are symmetrically arranged vertically on the insulating pad 2. The two second positioning holes and the second positioning rods 10 improve the force balance and at the same time limit the deflection of the insulating pad 2.

[0061] Of course, in other embodiments, only one second positioning hole may be provided, or multiple second positioning holes may be arranged in a circumferential array along the axis of the second positioning groove. The specific number is not limited, as long as it meets the actual usage requirements. Of course, in other embodiments, the second positioning hole may not be provided when meeting the actual usage requirements.

[0062] In other embodiments, while meeting practical usage and strength requirements, a protrusion can be added to the block 3 corresponding to the position of the insulating pad 2. In this case, an insertion hole is provided at the corresponding end of the insulating pad 2, and the positioning of the block 3 and the insulating pad 2 is achieved by the cooperation of the insertion hole and the protrusion. Alternatively, the protrusion on the block 3 can be designed as a gear tooth shape, and the insertion hole at the end of the insulating pad 2 facing the block 3 can be set as an internal tooth hole that matches the protrusion. The cooperation of the two can prevent the insulating pad 2 from deflecting from the block 3, thus maintaining the stability of the insulating pad 2 during use.

[0063] Preferably, in this embodiment, such as Figure 1 , 5 As shown, the fastener 4 includes a fastening screw 11 and a fastening nut 12. The upright timber 1, the insulating pad 2, and the stop 3 are each provided with a corresponding mounting through hole 13 adapted to the fastening screw 11. The fastening screw 11 passes through the upright timber 1, the insulating pad 2, and the stop 3 in sequence, with both ends of the fastening screw 11 protruding from the opposite sides of the upright timber 1 and the stop 3. The fastening nut 12 is screwed onto both ends of the fastening screw 11. By tightening the fastening nuts 12 on both sides, the upright timber 1, the insulating pad 2, and the stop 3 are fixed, thus clamping and fixing the lead wire 5. In this embodiment, the fastening screw 11 and the fastening nut 12 are respectively an insulating screw and an insulating nut.

[0064] Of course, in other embodiments, the fastening structure may also be an insulating bolt and an insulating nut.

[0065] In this embodiment, preferably, the fixing structure further includes an insulation layer 6, which is used to wrap around the outside of the lead wire 5 and is clamped together with the lead wire 5 between the upright 1 and the stop 3. Specifically, as shown... Figure 3 , 4 As shown, during actual installation, the multiple leads 5 that need to be led out are arranged side by side, and several layers of insulation 6 are tightly wrapped around them to form a flat insulated wire bundle that fits the installation area enclosed by the upright 1, the stop 3, and the insulating pad 2. Of course, in other embodiments, a single lead 5 can also be installed.

[0066] In this embodiment, the insulation 6 can be made of insulating paper. By wrapping the lead wire 5 with the insulation 6, multiple layers of insulation protection can be formed. At the same time, it can fill the gaps between the upright 1, the stop 3, and the insulating pad 2, effectively preventing insulation damage and loosening of the lead wire 5.

[0067] The installation process of the mounting structure of the present invention is as follows: First, insert the first positioning rod 8 of the two insulating pads 2 into the corresponding first positioning hole 9 until the end of the insulating pad 2 abuts the first positioning groove 7, thus completing the pre-assembly of the insulating pad 2 and the upright 1.

[0068] The lead wire 5 is wrapped with insulation 6 to form an insulated wire bundle that fits the installation area, and the insulated wire bundle is arranged between two insulating pads 2.

[0069] Align the second positioning hole of the stop block 3 with the second positioning rod 10 of the insulating pad 2 until the insulating pad 2 abuts against the second positioning groove, completing the pre-assembly of the stop block 3 and the insulating pad 2. Pass the fastening screw 11 sequentially through the upright 1, the insulating pad 2, and the stop block 3, and tighten the fastening nuts 12 at both ends of the fastening screw 11. Clamp and fix the lead wire 5 between the upright 1 and the stop block 3. During tightening, ensure even torque to guarantee a secure clamping without excessive compression that could damage the lead wire 5. Installation complete.

[0070] After installation, lead wire 5 is led out from the gap between upright 1 and stop 3, and the lead-out direction is adjusted according to the actual working conditions to complete the assembly of lead wire 5.

[0071] In summary, the fixed structure of this invention, with the lead wire 5 clamped in the gap formed by the upright 1 and the stop 3, and using two sets of cylindrical insulating pads 2, allows the lead wire 5 to be flexibly led out in any direction, realizing free multi-angle wiring and strong adaptability. The additional insulation 6 forms multiple insulation protection, effectively preventing insulation damage and loosening of the lead wire 5. At the same time, it can be adapted to install a single lead wire 5 or multiple lead wires 5, supporting multiple installation methods, and improving the reliability, safety and versatility of fixing the transformer lead wire 5.

[0072] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A fixing structure for transformer leads, characterized in that, Includes uprights (1), retaining blocks (3), insulating pads (2), and fasteners (4); Two insulating pads (2) are arranged vertically at intervals. The two insulating pads (2) are sandwiched between the upright (1) and the blocking wood (3). The upright (1) and the insulating pads (2) are positioned by a positioning structure. The opposite sides of the two insulating pads (2) are provided with arc-shaped surfaces. The upright (1), the blocking wood (3) and the two insulating pads (2) are connected and fixed by fasteners (4) so ​​that the lead wire (5) is clamped and fixed between the upright (1) and the blocking wood (3).

2. The fixing structure for transformer leads according to claim 1, characterized in that, The insulating pad (2) is a cylindrical structure with its axis extending in the horizontal direction.

3. The fixing structure for transformer leads according to claim 1, characterized in that, The positioning structure includes a first positioning groove (7) that is adapted to the insulating pad (2) and is provided on the side of the upright (1) facing the insulating pad (2).

4. The fixing structure for transformer leads according to claim 3, characterized in that, The first positioning groove (7) is provided with a first positioning hole (9) extending inward in the horizontal direction, and the end of the insulating pad (2) facing the first positioning groove (7) is provided with a first positioning rod (8) that corresponds to and matches the first positioning hole (9).

5. The fixing structure for transformer leads according to claim 4, characterized in that, Two first positioning holes (9) are arranged symmetrically along the vertical direction.

6. The fixing structure for transformer leads according to claim 1, characterized in that, The second positioning groove of the block (3) facing the insulating pad (2) is adapted to the insulating pad (2).

7. The fixing structure for transformer leads according to claim 6, characterized in that, The second positioning groove is provided with a second positioning hole extending inward in the horizontal direction, and the end of the insulating pad (2) facing the second positioning groove is provided with a second positioning rod (10) that is adapted to the second positioning hole.

8. The fixing structure for transformer leads according to claim 7, characterized in that, Two second positioning holes are symmetrically arranged vertically.

9. The fixing structure for transformer leads according to claim 1, characterized in that, The fastener (4) includes a fastening screw (11) and a fastening nut (12). The upright (1), insulating pad (2) and stop (3) are respectively provided with mounting through holes (13) adapted to the fastening screw (11). The fastening screw (11) passes through the upright (1), insulating pad (2) and stop (3) in sequence. The fastening nut (12) is screwed on both ends of the fastening screw (11).

10. The fixing structure for transformer leads according to claim 1, characterized in that, It also includes an additional insulation (6) for wrapping around the outside of the lead wire (5) and being clamped together with the lead wire (5) between the upright (1) and the retaining (3).

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